CN101228659B - Lithium battery management system - Google Patents
Lithium battery management system Download PDFInfo
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- CN101228659B CN101228659B CN2006800270822A CN200680027082A CN101228659B CN 101228659 B CN101228659 B CN 101228659B CN 2006800270822 A CN2006800270822 A CN 2006800270822A CN 200680027082 A CN200680027082 A CN 200680027082A CN 101228659 B CN101228659 B CN 101228659B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/269—Mechanical means for varying the arrangement of batteries or cells for different uses, e.g. for changing the number of batteries or for switching between series and parallel wiring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold; and a discharging resistor which is selectively electrically connected to the cell so as to consume the voltage of the cell and effectively balances the lithium battery system when the device detects that the temperature of the cell has exceeded the predetermined threshold. A method of managing the temperature of a lithium battery system is also included.
Description
Perhaps develop relevant statement with the research that federation supports
U.S. government has that authorize according to USDOE and right of the present invention about No.DE-FC26-95EE50425.
The cross reference of related application
The application requires the U.S. Provisional Patent Application No.60/686 of submission on June 2nd, 2005,573 rights and interests, and its full content is incorporated this paper into way of reference.
Technical field
The present invention relates to battery and battery system.More particularly; The system that the present invention relates to lithium battery (for example lithium ion battery, lithium polymer battery or the like) and use this battery, said system comprise and are used for the system that when satisfying predetermined condition, one or more batteries, battery module or battery unit (battery cell) managed.
Background technology
The well-known battery that supplies such as the such vehicle use of motor vehicle that provided.For example, start, throw light on and igniter applications in use lead-acid battery.In recent years, produced and utilize battery (for example ni-MH battery) to combine to think that vehicle provides the motor vehicle driven by mixed power of power with other system (for example internal combustion engine).
What be generally known is that lithium battery is different with the performance of ni-MH battery.In some applications, desirable is to gain impetus/lithium battery that performance improves.Yet those challenges in typically being present in traditional ni-MH battery The Application of Technology, the application of lithium battery technology has also brought the challenge of design and craft.
The design and the management that can be advantageously utilised in the lithium battery system in the motor vehicle driven by mixed power relate to the such problem of consideration such as electrical property monitoring, heat management and effluent (gas of for example emitting from battery unit) sealing.For example, desirable is that the temperature of each battery unit within the lithium battery system is monitored to guarantee not satisfy the thermal runaway condition.When satisfying predetermined condition, desirablely provide a kind of system that one or more batteries, battery module or battery unit are managed of being used for.Further desirable for this battery management system is to make unit or module balanced (balance) with till changing until condition.In addition, desirablely provide a kind of like this system, this system is used for battery, battery module or unit being broken off at battery unit during near the predetermined temperature threshold value with this system and is connected.
Summary of the invention
Desirablely provide a kind of disclosed in this application one or more battery system that includes in following or other useful characteristics.
A kind of lithium battery or unit (for example lithium ion battery, lithium polymer battery or the like) of utilizing thinks that vehicle provides the battery system of power.
A kind of lithium battery system that in the vehicle that comprises the equipment that is used for the temperature of one or more batteries of battery system is monitored or mechanism, uses.
The lithium battery system that uses in a kind of equipment of the one or more cell balancings that under being included in the situation that predetermined condition satisfies, make circuit or the vehicle of mechanism.
The lithium battery system that uses in the vehicle of a kind of equipment that under being included in the situation that predetermined condition satisfies, from circuit, removes one or more battery units or mechanism.
A kind of temperature in the one or more batteries, battery module or the unit that are included in circuit surpasses the lithium battery system that uses in the vehicle that makes this battery balanced equipment or mechanism under the situation of predetermined threshold.
A kind of lithium battery system that in the vehicle of the temperature that is included in one or more batteries, battery module or unit, uses above equipment that the disconnection of this battery and circuit is connected or mechanism.
A kind of lithium battery system of system relatively simply and accurately of the appearance that comprises the thermal runaway that is used for confirming system's battery temperature and reduce this battery.
Illustrative examples relates to a kind of system that the lithium battery system with a plurality of unit is managed of being used for.This battery system comprises: variable impedance element, this variable impedance element are electrically connected with the unit and are positioned on the position of closing on the part of unit; Equipment, whether the temperature that is used to utilize variable impedance element to confirm the unit surpasses predetermined threshold; And discharge resistor, this discharge resistor and this unit are electrically connected consuming the voltage of this unit selectively, and surpass to cell temperature in this Equipment Inspection and to make this lithium battery system balanced under the situation of this predetermined threshold effectively.
Another illustrative examples relates to a kind of method that the temperature of lithium battery system is managed of being used for, and this method comprises: the voltage of confirming to be electrically connected with battery system and be arranged in the variable impedance element on any one the unit adjacent locations with this system; Utilize the voltage of variable impedance element to confirm the temperature of unit; Whether the temperature of confirming the unit surpasses predetermined threshold; And arrive in the temperature of unit under the situation of predetermined threshold temperature and make this system equalization.
Description of drawings
From following description, appended claims and learning of may be obvious that the illustrative examples shown on the accompanying drawing of following summary these and other characteristic of the present invention, aspect and advantage.
Fig. 1 is according to the lithium battery of illustrative examples or the perspective view of unit;
Fig. 2 is another perspective view of battery shown in Figure 1;
Fig. 3 is the decomposition diagram according to the battery system of the modular form that includes a plurality of lithium batteries or unit according to illustrative examples;
Fig. 4 be lithium battery or unit and satisfy be used under the situation of predetermined condition to make battery balanced, break off link to each other, or to the sketch map of its system that manages.
Embodiment
According to illustrative examples; A kind of like this lithium battery system is provided, this lithium battery system comprise be used for occur under the situation of predetermined condition one or more lithium batteries, battery module or unit (for example the lithium ion unit of any present known structure, lighium polymer unit or the like or other structures of developing in the future) are managed (for example make its balanced or break off connect) system or mechanism.This lithium battery system may be used on independent lithium battery or is included on the one or more lithium batteries within the module, and said module comprises a plurality of lithium batteries or unit.In addition; According to the illustrative examples that the module that includes a plurality of lithium batteries wherein is provided; Can this module be included within the following system, said system comprises a plurality of lithium battery modules of any other structure that any present known structure or future possibly develop.
The U.S. Patent application No.10/976 that submits on October 28th, 2004 describes and shows the various non-exclusive illustrative examples of lithium battery and lithium battery system in 169, and its full content is incorporated this paper into way of reference.Fig. 1-2 is illustrated lithium battery or unit; And Fig. 3 is to comprising that basis is at U.S. Patent application No.10/976; The module of a plurality of lithium batteries of the illustrative examples of describing in 169 and illustrating describes (reference number shown in Fig. 1-3 and U.S. Patent application No.10/976, employed reference number is corresponding in 169).
Though the illustrative examples of Fig. 1-3 pair of specific lithium battery and battery system is illustrated, and also can use according to the multiple lithium battery of various other illustrative examples or any one in the battery system.For example, according to various illustrative examples, the physical structure of each unit and/or module becomes according to design object and Consideration.According to an illustrative examples, system can comprise the module with ten unit.According to other illustrative examples, can comprise the unit of different numbers in the module.
As shown in Figure 4, according to illustrative examples, provide system 300 to be used for when satisfying predetermined condition, making one or more batteries or unit 310 equilibriums, to break off with circuit and is connected, perhaps removes one or more batteries or unit 310 from circuit.According to illustrative examples, be configured to when satisfying the predetermined temperature threshold value, make one or more modules (each module comprises a plurality of unit) to break off system 300 and be connected with load (for example vehicle load).In this manner, the end unit electric power that offers vehicle continues to raise to avoid making the hot state in any one unit.
According to illustrative examples, unit 310 is complete charging voltage lithium ion unit between about 0 and 5 volt.According to specific illustrative examples, unit 310 has the complete charging voltage between about 3.0 to 4.2 volts.
System 300 comprises the element that closes on setting with unit 310, and this arrangements of components is become to be used for temperature detected and/or be configured to it to demonstrate temperature-dependent characteristic.According to illustrative examples as shown in Figure 4, the element 330 of variable resistance (for example such as the such thermistor of plus or minus temperature coefficient of resistance device) form and at least one end utmost point (for example positive terminal 312) electric coupling of unit 310.For convenience's sake, below element 330 is called " variable resistance 330 ", but should be understood that this element can comprise the equipment according to the other types of various other illustrative examples.
Variable resistance 330 is set to the tight relatively upper surface 316 (for example near positive terminal 312) adjacent to unit 310.According to illustrative examples, this variable resistance contacts with the part of unit 310.According to specific illustrative examples, the element such such as variable resistance can comprise that (for example integrated) is in the cap of unit 310 (the for example such cap of the cap shown in Fig. 1 142).According to another specific illustrative examples, comprise that variable resistance is with the part as the battery-end utmost point or the battery-end utmost point assembly of unit 310.
Though Fig. 4 shows the tight relatively adjacent variable resistance 330 of upper surface 316 with unit 310; But it should be noted; According to other illustrative examples; Variable resistance can with the lower surface 318 relative close proximity of unit 310, for example near negative pole end 314 (for example its can be included within the cap of unit or the like).
According to specific illustrative examples, variable resistance 330 be have the impedance that changes with temperature linearity and when about 80 ℃ temperature impedance be approximately 300 ohm positive temperature coefficient (PTC) resistor.According to other illustrative examples, one or more variable resistances replace or add variable resistance 330 with different impedances (for example impedance can change with nonlinear temperature, impedance when about 80 ℃ temperature, have different impedances or the like) to.In other illustrative examples, variable resistance 330 has the impedance that changes or change with logarithm with temperature linearity.Provide the company that maybe can provide to comprise Raychem, Littelfuse and Burroughs Corp such as the so various variable resistances of variable resistance 330.
According to variable resistance is the illustrative examples of positive temperature coefficient (PTC) resistor, and variable resistance 330 is configured to its impedance is become (for example increasing) with the rising of temperature.According to the illustrative examples of using thermistor, impedance reduces along with the increase of temperature.
Because its position, variable resistance 330 have with variable resistance 330 adjacent positions on the similar temperature of temperature of unit 310.Know the characteristic (for example how its impedance becomes or the like with temperature) of variable resistance 330, estimate or confirm the temperature of the unit 310 adjacent with variable resistance 330.According to illustrative examples; The system that includes following a plurality of elements is provided, and said a plurality of elements are configured to when the impedance of variable resistance 330 increases to predetermined threshold, be used to the battery module equilibrium that makes unit 310 or wherein be provided with unit 310 or break off connection.System 300 shown in Fig. 4 shows an illustrative examples of this system, but it should be noted, also can use the various other systems according to other illustrative examples.
According to illustrative examples, when unit 310 was operated under normal temperature, variable resistance 330 had about 1.0 ohm impedance, and when 310 temperature surpasses about 80 ℃, had about 300 ohm or bigger impedances in the unit.According to other illustrative examples, can use other variable resistances with different resistance values and/or function (the for example impedance between about 0.1 and 10 ohm).
As shown in Figure 4, resistor 340 (fixed resistor that for example has constant impedance) and such as such switch of MOSFET 350 and variable resistance 330 polyphones.According to illustrative examples, switch 350 is configured to when the voltage of unit 310 surpasses predetermined value the voltage (for example to make the electric voltage equalization of other unit in unit and the module) through resistor 340 consumable unit 310.
Temperature in unit 310 is lower than under the normal operating condition of predetermined threshold (for example 80 ℃), and the voltage at variable resistance 330 two ends is compared less relatively with the voltage at resistor 340 two ends.According to illustrative examples, the impedance of resistor 340 is 10 to 100 times of impedance of variable resistance 330 at least under normal operating condition.When the temperature of unit 310 increased to above predetermined threshold, the impedance of variable resistance 330 also increased, and this can cause the corresponding increase of voltage at variable resistance 330 two ends.Under this situation, the voltage at resistor 340 and switch 350 two ends reduces.Voltage at resistor 340 and switch 350 two ends is lower than under the situation of predetermined threshold (for example 2.8 volts), can determine unit 310 and damage.
An embodiment of system 300 operates (for example being utilized in the unit 310 within the tolerance interval of operating temperature) during the normal operating condition, so that switch 350 can make electric current pass this circuit.This circuit as wherein relatively the voltage of the small scale voltage that is applied to two ends (being that variable resistance 330 has relatively low impedance under normal running temperature) and the larger proportion in this circuit of resistor 330 be applied to the voltage divider at the two ends of resistor 340.Certainly, the voltage that is applied to each element two ends depends on character according to the employed parts of other illustrative examples (for example during normal operating condition the voltage approximately equal at resistor 330 and 340 two ends or otherwise select according to design consideration).When the temperature of variable resistance 330 increases to above the predetermined threshold temperature, the impedance variations of variable resistance 330, this can cause voltage (and therefore the voltage at the switch 350 two ends) respective change at variable resistance 330 and resistor 340 two ends.
As shown in Figure 4, according to illustrative examples, provide to be used for equipment 360 that the voltage at resistor 340 and switch 350 two ends is measured.Near the end utmost point 312 of measured voltage and unit 310 temperature correlation is with the approximation of temperature that unit 310 is provided (impedance of promptly knowing voltage and the fixed resistor 340 at fixed resistor 340 two ends just can be confirmed the voltage and the impedance of variable resistance 330, and this is used in the temperature of determining variable resistance 330 under the situation of knowing the relation between temperature and the impedance).According to another illustrative examples, provide with equipment 360 similar equipment so that it can be measured the voltage at variable resistance 330 two ends.
Further as shown in Figure 4, provide computing equipment or the like form of device 370 so that battery system, module or unit are managed.According to illustrative examples, equipment 370 is (for example including or be coupled to the CAN bus processor) computers.Equipment 370 can be monitored the temperature of one or more unit.Equipment 370 can come the unit is monitored through the temperature of inferring the unit.Equipment 370 is through inferring the temperature of unit to the voltage inspection at resistor 340 and switch 350 two ends.In one embodiment, equipment 370 receptions are from the information of voltage of equipment 360.
Equipment 370 is carried out exercises (for example make the unit equilibrium or remove module) according to temperature and other factors.Specific function begin to depend on detected environment.For example, in one embodiment, equipment 370 is taked action when having one or more voltage conditions.In an illustrative examples, when equipment 370 determine satisfied below in three conditions any one or when a plurality of, equipment 370 breaks off the connection of whole modules or module groups.These three conditions comprise: (a) temperature arrives certain predetermined threshold (for example temperature arrive or above 80 ℃); (b) temperature increases certain predetermined temperature amount (for example temperature has increased by 10 ℃ in less than one minute time during less than the period of certain scheduled time slot; And (c) unit or unit group are surpassing certain predetermined temperature of keeping higher than other unit in the period (for example the unit keeps than 20 ℃ of the high temperature in other unit in the module) in than one minute longer period.
In a particular embodiment, whether there is predetermined condition in the equipment that equipment 370 uses one or more look-up tables or truth table 380 to confirm will take to move.Look-up table 380 comprises the possible voltage conditions of row that is complementary with the corresponding deduction temperature of row unit 310 resistor 340 and switch 350.A possibility example of look-up table 300 is shown in following table I.In the illustrative examples of using table I; Unit 310 has 4.0 volts of centre tap voltages (for example shown in the row of " the circuit disconnection " in the table I; It is corresponding with the situation that switch 350 is opened), resistor 330 has the normal impedance of 0.2 milliohm, and resistor 340 is resistors of 4 ohm.When the temperature of unit 310 and resistor 330 increased, equipment 360 had reduced with the relevant voltage at resistor 340 two ends that equipment 370 is read.The look-up table 380 of equipment 370 uses shown in table I is so that the voltage that is read is relevant with the temperature conditions of unit 310.For example; Along with circuit is connected; When equipment 360 and 370 had read 0.1 volt voltage, it was 80 ℃ (" circuit connection " row are corresponding with the situation of close switch 350) that the voltage during equipment 370 is listed as through " the circuit connection " that makes table I and " Celsius temperature " of table I are listed as the temperature of inferring unit 310 that is complementary.According to an embodiment, when arriving or having surpassed this temperature conditions, equipment 370 can take to make battery module to break off the action that connects.In other embodiments, equipment 370 can make entire cell break off connection or extinguish vehicle.
According to another illustrative examples, the voltage in the unit is lower than or when rising to above certain predetermined threshold, equipment 370 can be relevant to other unit makes this unit balanced.In one embodiment, (for example such as night such during vehicle is inactive) equipment 370 comes the voltage of consumable unit through using resistor 340 as discharge resistor.For the processing that begins to make the unit balanced, equipment 370 is with close switch 350.When close switch 350, the circuit as a result that includes discharge resistor 340 can make the voltage in the unit 310 descend.When unit 310 arrives the voltage level of expectation, open switch 350.
In this embodiment, circuit 300 is used to make unit 310 equilibriums.Under normal condition, open switch 350, equipment 360 and 370 reads normal cell voltage.In this illustrative examples, very low electric current does not perhaps have electric current to flow through equipment 360 and equipment 370 (equipment 360 has the impedance of 1-10 million (mega) ohm).If the voltage of unit 310 has increased, the voltage that read of equipment 360 and 370 also can increase so., the voltage that read equipment 360 and 370 surpassed certain predetermined threshold, equipment 370 close switch 350 so if increasing.When switch 350 closures, the electric current that flows through discharge resistor 340 can make the voltage of unit 310 begin to reduce.Let unit 310 discharges can make other unit in unit 310 and the battery module carry out equilibrium through resistor 340.
In illustrative examples, equipment 370 also can comprise processing, and in said processing, it makes discrete cell or the balanced frequency of module computer recording.Detect or identify under the situation that makes the equilibrium of one or more unit or module relatively continually at equipment 370, equipment 370 can make the unit of damage or whole module be connected with the power transmission system disconnection of vehicle.
For having checked those of ordinary skills of the present disclosure, should be understood that, can use any one in various variable resistances, resistor (for example including the resistor 340 of one or more resistors) and the switch according to various illustrative examples.For example, according to other illustrative examples, the impedance of variable resistance and fixed resistor can be different.Can based on comprise availability, cost, and various factorss of considering of other designs come each parts of selective system 300.Make in the time of can using any appropriate combination of above-mentioned parts to reach predetermined condition (for example temperature) to be provided at balanced such as above-mentioned unit or battery module, break off connect, or to its system that manages.Equilibrium when selecting various parts to occur to surpass 80 ℃ or any other predetermined threshold temperature or other temperature incidents or condition in temperature, remove or administrative unit, battery module or circuit in battery.
It should be noted, can use such as the such system of said system 300 with the temperature of one or more batteries of in module, comprising surpass make under the situation of predetermined threshold whole module balanced, it is broken off with vehicle electrical systems be connected, perhaps it managed.Each unit that in module, comprises close on or this module within one or more positions on variable resistance or similar components (for example " compound " temperature of whole module is detected) are set.Temperature (the perhaps combined temp of whole module) at one or more batteries has surpassed under the situation of predetermined threshold temperature, and (for example using such switch such as MOSFET) broken off this module and circuit to be connected (for example so that this module be connected with the vehicle electrical systems disconnection).
Need be noted that emphatically that the structure of the system shown in the various illustrative examples only is illustrative with arranging.Though in the disclosure, only several embodiments of the present invention are described in detail; But what checked that those skilled in the art of the present disclosure are readily appreciated that is; Substantially do not break away under the prerequisite of novelty teaching and advantage of theme described in claims, can carry out various modifications (for example can make amendment) the disclosure to size, size, structure, shape and the ratio of various elements and parameter value, assembling layout, materials used, color, orientation or the like.For example; The element that is shown one can be formed by a plurality of parts or component construction; The position of element can be reverse or changeable (for example the closing on of negative pole end at battery is provided with the variable temperature resistor), and can revise or change character or number or position (a plurality of resistors for example are set replace single resistor) of independent component.Therefore, all such modifications include within the defined scope of the present invention of accompanying claims.Can change or arrange again the order or the order of all processing or method step according to alternative embodiment.Without departing from the scope of the invention, can carry out other replacement, modification, change and omission to design, operating condition and the layout of various illustrative examples.
Though illustrated in the accompanying drawings and aforesaid illustrative examples current be preferred, should be understood that these embodiment only are schematic.For example, promptly can the teaching among this paper be applied to any battery system and be not limited to the lithium battery system in the vehicle.Therefore, battery system is not limited to specific embodiment, but expansion comprises the various modifications of the scope that falls into appended claims.
Claims (33)
1. one kind is used for system that the lithium battery system with a plurality of battery units is managed, comprising:
Variable impedance element, said variable impedance element is electrically connected with a battery unit in said a plurality of battery units and is positioned on the position of closing on the part of a said battery unit;
Equipment, whether the temperature that is used to utilize said variable impedance element to confirm a said battery unit surpasses predetermined threshold; And
Discharge resistor; Said discharge resistor and a said battery unit are electrically connected consuming the voltage of a said battery unit selectively, and surpass under the situation of said predetermined threshold to the temperature of a said battery unit in said Equipment Inspection and to make the voltage of a said battery unit and other cell balancings in the said lithium battery system effectively.
2. according to the system that lithium battery system is managed of claim 1; Wherein, Surpass under the situation of said predetermined threshold in the temperature of said Equipment Inspection to a said battery unit, said equipment makes a said battery unit be connected with said system's disconnection that lithium battery system is managed.
3. according to the system that lithium battery system is managed of claim 2, comprise that also the voltage that is used for the blocked impedance element two ends of the said system that lithium battery system is managed carries out the measured voltage table.
4. according to the system that lithium battery system is managed of claim 2; Wherein, Said equipment confirms that a said battery unit surpasses the frequency of said predetermined threshold temperature, and is connected above a said battery unit is broken off with said lithium battery system in said predetermined threshold temperature.
5. according to the system that lithium battery system is managed of claim 1; Also comprise switch, said switch makes said discharge resistor be electrically connected selectively with a said battery unit and consumes the voltage of a said battery unit through said discharge resistor.
6. according to the system that lithium battery system is managed of claim 1; Wherein, Said equipment confirms that a said battery unit surpasses the frequency of said predetermined threshold temperature, and surpasses the voltage that consumes a said battery unit under the situation of pre-determined number in said predetermined threshold temperature.
7. according to the system that lithium battery system is managed of claim 1; Wherein, In said a plurality of battery unit each has the variable impedance element that is coupled with it, and said equipment confirms whether any one temperature in said a plurality of battery unit surpasses said predetermined threshold.
8. according to the system that lithium battery system is managed of claim 7, wherein, when at least one in said a plurality of battery units surpassed said predetermined threshold, said equipment made said lithium battery system be connected with the vehicle electrical systems disconnection.
9. according to the system that lithium battery system is managed of claim 1, wherein, the voltage of said variable impedance element changes with temperature.
10. according to the system that lithium battery system is managed of claim 9, wherein, said variable impedance element is a thermistor.
11. according to the system that lithium battery system is managed of claim 1, wherein, when at least one in said a plurality of battery units surpassed said predetermined threshold, said equipment made said lithium battery system be connected with the vehicle electrical systems disconnection.
12. the system that lithium battery system is managed according to claim 3; Wherein, Said equipment is the computer with reference to look-up table; Said look-up table comprise said blocked impedance element two ends with the measuring voltage of measuring temperature correlation, wherein, said computer is through confirming the temperature of a said battery unit with reference to said look-up table.
13. one kind is used for method that the temperature of lithium battery system is managed, comprises:
Confirm the voltage of variable impedance element, said variable impedance element is electrically connected with said lithium battery system and is arranged on the position that any one battery unit with a plurality of battery units of said lithium battery system closes on;
Utilize the voltage of said variable impedance element to confirm the temperature of said any one battery unit;
Whether the temperature of confirming said any one battery unit surpasses predetermined threshold; And
Temperature at said any one battery unit arrives under the situation of said predetermined threshold temperature, makes the voltage of said any one battery unit and other cell balancings in the said lithium battery system.
14. the method according to claim 13 also comprises:
Surpassing under the situation of said predetermined threshold temperature, said any one battery unit is being broken off with said lithium battery system be connected.
15. the method according to claim 13 also comprises:
Surpassing under the situation of said predetermined threshold temperature, through with said a plurality of battery units in any one discharge resistor that is electrically connected selectively consume any one voltage in said a plurality of battery unit.
16. one kind is used for system that the lithium battery system with a plurality of battery units is managed, comprises:
Variable impedance element, said variable impedance element is electrically connected with a battery unit in said a plurality of battery units and is positioned on the position of closing on the part of a said battery unit;
Equipment, whether the temperature that is used to utilize said variable impedance element to confirm a said battery unit surpasses predetermined threshold; And
Discharge resistor, said discharge resistor are electrically connected and when linking to each other with a said battery unit, consume the voltage of a said battery unit selectively with a said battery unit,
Wherein, when at least one in said a plurality of battery units surpassed said predetermined threshold, said equipment made said lithium battery system be connected with the vehicle electrical systems disconnection.
17., comprise that also the voltage that is used for the blocked impedance element two ends of the said system that lithium battery system is managed carries out the measured voltage table according to the system that lithium battery system is managed of claim 16.
18. the system that lithium battery system is managed according to claim 17; Wherein, Said equipment is the computer with reference to look-up table; Said look-up table comprise said blocked impedance element two ends with the measuring voltage of measuring temperature correlation, wherein, said computer is through confirming the temperature of a said battery unit with reference to said look-up table.
19. the system that lithium battery system is managed according to claim 16; Also comprise switch, said switch makes said discharge resistor be electrically connected selectively with a said battery unit and consumes the voltage of a said battery unit through said discharge resistor.
20. the system that lithium battery system is managed according to claim 16; Wherein, Said equipment confirms that a said battery unit surpasses the frequency of said predetermined threshold temperature, and surpasses the voltage that consumes a said battery unit under the situation of pre-determined number in said predetermined threshold temperature.
21. the system that lithium battery system is managed according to claim 16; Wherein, In said a plurality of battery unit each has the variable impedance element that is coupled with it, and said equipment confirms whether any one temperature in said a plurality of battery unit surpasses said predetermined threshold.
22. according to the system that lithium battery system is managed of claim 16, wherein, the voltage of said variable impedance element changes with temperature.
23. according to the system that lithium battery system is managed of claim 22, wherein, said variable impedance element is a thermistor.
24. one kind is used for system that the lithium battery system with a plurality of battery units is managed, comprises:
Variable impedance element, said variable impedance element is electrically connected with a battery unit in said a plurality of battery units and is positioned on the position of closing on the part of a said battery unit;
Equipment, whether the temperature that is used to utilize said variable impedance element to confirm a said battery unit surpasses predetermined threshold; And
Discharge resistor; Said discharge resistor is electrically connected and when linking to each other with a said battery unit, consumes the voltage of a said battery unit selectively with a said battery unit; And surpass under the situation of said predetermined threshold to the temperature of a said battery unit in said Equipment Inspection and to make the voltage of a said battery unit and other cell balancings in the said lithium battery system effectively
Wherein, said equipment confirms that a said battery unit surpasses the frequency of said predetermined threshold temperature, and is connected above a said battery unit is broken off with said lithium battery system in said predetermined threshold temperature.
25., comprise that also the voltage that is used for the blocked impedance element two ends of the said system that lithium battery system is managed carries out the measured voltage table according to the system that lithium battery system is managed of claim 24.
26. the system that lithium battery system is managed according to claim 24; Wherein, Said equipment is the computer with reference to look-up table; Said look-up table comprise said blocked impedance element two ends with the measuring voltage of measuring temperature correlation, wherein, said computer is through confirming the temperature of a said battery unit with reference to said look-up table.
27. the system that lithium battery system is managed according to claim 24; Also comprise switch, said switch makes said discharge resistor be electrically connected selectively with a said battery unit and consumes the voltage of a said battery unit through said discharge resistor.
28. the system that lithium battery system is managed according to claim 24; Wherein, Said equipment confirms that a said battery unit surpasses the frequency of said predetermined threshold temperature, and surpasses the voltage that consumes a said battery unit under the situation of pre-determined number in said predetermined threshold temperature.
29. the system that lithium battery system is managed according to claim 24; Wherein, In said a plurality of battery unit each has the variable impedance element that is coupled with it, and said equipment confirms whether any one temperature in said a plurality of battery unit surpasses said predetermined threshold.
30. according to the system that lithium battery system is managed of claim 29, wherein, when at least one in said a plurality of battery units surpassed said predetermined threshold, said equipment made said lithium battery system be connected with the vehicle electrical systems disconnection.
31. according to the system that lithium battery system is managed of claim 24, wherein, the voltage of said variable impedance element changes with temperature.
32. want 31 the system that lithium battery system is managed according to right, wherein, said variable impedance element is a thermistor.
33. according to the system that lithium battery system is managed of claim 24, wherein, when at least one in said a plurality of battery units surpassed said predetermined threshold, said equipment made said lithium battery system be connected with the vehicle electrical systems disconnection.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68657305P | 2005-06-02 | 2005-06-02 | |
| US60/686,573 | 2005-06-02 | ||
| PCT/US2006/003469 WO2007050109A1 (en) | 2005-06-02 | 2006-02-01 | Lithium battery management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101228659A CN101228659A (en) | 2008-07-23 |
| CN101228659B true CN101228659B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800270822A Expired - Fee Related CN101228659B (en) | 2005-06-02 | 2006-02-01 | Lithium battery management system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8173285B2 (en) |
| EP (1) | EP1902490A1 (en) |
| JP (1) | JP2008543015A (en) |
| CN (1) | CN101228659B (en) |
| WO (1) | WO2007050109A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011069162A1 (en) * | 2009-12-04 | 2011-06-09 | A123 Systems, Inc. | Battery with integrated power management system and scalable battery cutoff component |
| KR101181822B1 (en) * | 2010-10-13 | 2012-09-11 | 삼성에스디아이 주식회사 | Battery management system and method thereof, and power storage apparatus using the same |
| US10044074B2 (en) | 2011-03-18 | 2018-08-07 | Johnson Controls Technology Company | Battery power source control and current detection systems and methods |
| CN103123992B (en) | 2011-11-17 | 2015-07-29 | 财团法人工业技术研究院 | Battery pack and method for controlling charge and discharge of battery pack by thermoelectric characteristics thereof |
| US9605952B2 (en) | 2012-03-08 | 2017-03-28 | Quality Manufacturing Inc. | Touch sensitive robotic gripper |
| CA2863197A1 (en) * | 2012-03-08 | 2013-09-12 | Quality Manufacturing Inc. | Touch sensitive robotic gripper |
| DE102012212380A1 (en) * | 2012-07-16 | 2014-01-16 | Robert Bosch Gmbh | Method for providing indicators for the state of danger of a battery |
| US9159964B2 (en) | 2012-09-25 | 2015-10-13 | Front Edge Technology, Inc. | Solid state battery having mismatched battery cells |
| US9478829B2 (en) * | 2013-05-16 | 2016-10-25 | Ec Power, Llc | Rechargeable battery with multiple resistance levels |
| US10236538B2 (en) * | 2013-05-31 | 2019-03-19 | Laurence Lujun Chen | Intelligent battery management system and method for optimizing battery set to the best performance |
| WO2015093435A1 (en) * | 2013-12-20 | 2015-06-25 | ダイキン工業株式会社 | Electrolytic solution, electrochemical device, lithium-ion secondary cell, and module |
| US20170018817A1 (en) * | 2014-04-02 | 2017-01-19 | Corvus Energy Ltd. | Method, system, and apparatus for inhibiting thermal runaway of a battery cell |
| CN104880676A (en) * | 2015-05-29 | 2015-09-02 | 金龙联合汽车工业（苏州）有限公司 | Power battery pack thermal runaway safety alarm method based on battery management system |
| US10718359B2 (en) | 2015-08-21 | 2020-07-21 | Quality Manufacturing Inc. | Devices and systems for producing rotational actuation |
| FR3050074B1 (en) | 2016-04-07 | 2018-06-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | ELECTROCHEMICAL DEVICE, SUCH AS A MICROBATTERY, AND METHOD FOR PRODUCING THE SAME |
| CN109786880B (en) * | 2019-01-23 | 2023-11-10 | 成都市银隆新能源产业技术研究有限公司 | Method for testing internal temperature of battery |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5602460A (en) * | 1995-04-28 | 1997-02-11 | Motorola, Inc. | Overcharge current protection circuit and battery pack using same |
| US6608470B1 (en) * | 1998-01-31 | 2003-08-19 | Motorola, Inc. | Overcharge protection device and methods for lithium based rechargeable batteries |
| US6025696A (en) * | 1998-03-27 | 2000-02-15 | Space Systems/Loral, Inc. | Battery cell bypass module |
| JP2000152516A (en) * | 1998-11-13 | 2000-05-30 | Nec Saitama Ltd | Battery pack temperature protecting circuit |
| JP3610823B2 (en) * | 1999-04-27 | 2005-01-19 | 新神戸電機株式会社 | Module battery control device, module battery unit, and module battery control method |
| JP3825387B2 (en) * | 2002-10-09 | 2006-09-27 | ソニーケミカル＆インフォメーションデバイス株式会社 | Secondary battery with protection circuit |
| JPWO2005046017A1 (en) * | 2003-11-07 | 2007-05-24 | タイコ エレクトロニクス レイケム株式会社 | Overheat prevention device and electric apparatus provided with the same |
-
2006
- 2006-02-01 WO PCT/US2006/003469 patent/WO2007050109A1/en active Application Filing
- 2006-02-01 JP JP2008514620A patent/JP2008543015A/en active Pending
- 2006-02-01 US US11/921,442 patent/US8173285B2/en active Active
- 2006-02-01 CN CN2006800270822A patent/CN101228659B/en not_active Expired - Fee Related
- 2006-02-01 EP EP06844068A patent/EP1902490A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1902490A1 (en) | 2008-03-26 |
| JP2008543015A (en) | 2008-11-27 |
| US8173285B2 (en) | 2012-05-08 |
| WO2007050109A1 (en) | 2007-05-03 |
| CN101228659A (en) | 2008-07-23 |
| US20090208815A1 (en) | 2009-08-20 |
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